Transverse vibration excess of magnetic pump
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Could any expert help analyze the reasons for the excessive vibration at the drive end of the hot oil magnetic pump?
The possibility of rotor imbalance is high. It is possible to redo the rotor dynamic balancing under certain conditions.
The sliding bearing has a large clearance, and the alignment between the inner and outer magnetic rotors is poor
Check whether cavitation has occurred The pump operates at the edge of cavitation; as a result, there is significant vibration, which eventually destroys both the front and rear thrust rings as well as the rear casing. It is also possible that the rotating components inside the pump are damaged, resulting in imbalance in rotation.
First, consider whether the bearing has a large clearance or is damaged; also check whether the external magnet is installed at an incorrect angle, as well as whether the external magnet is balanced.
Is it possible that it’s caused by the foundation?
Is it possible that it’s caused by the foundation?
The vertical vibration is significantly greater than the axial and horizontal vibrations, which may be due to looseness or insufficient foundation stiffness. Is there a spectrum?